[parisc-linux] a pretty big change
Ulrich Strelow
ulrich_strelow@yahoo.com
Thu, 9 Dec 1999 04:24:31 -0800 (PST)
Hello Paul,
thanks for the quick answer. I am sorry but I did not
understand what I see in System.map:
excerpt 1 for System.Map:
c0049f90 t $CODE$
c0049f90 t put_unused_buffer_head
c0049fd8 t L$1856
c004a004 t L$1854
c004a018 t $CODE$
c004a018 t get_unused_buffer_head
c004a110 t $CODE$
c004a110 t create_buffers
c004a320 t $CODE$
c004a320 t end_buffer_io_async
So I thought 0xc004a078 is in get_unused_buffer_head
which is in fs/buffer.c.
excerpt 2 from System.map:
c0111f14 D blkdev_inode_operations
c0111f64 D def_chr_fops
c0111fa0 D chrdev_inode_operations
c0111ff0 d L$C0008
c0111ffc d L$C0009
c011200c d L$C0010
c0112018 d L$C0011
c0112028 d L$C0012
c0112038 D nr_files
c0112038 d lock___76
So 0xc0112000 points into the data segment(?) as a
return address for that subroutine.
Unfortunately I have no anonymous ftp server here at
work, where I can put the kernel for you. And
puffin.external.hp.com has no Incoming directory...
So is it ok to send Image + System.map as a
tar.gz-file via mail to you?
If this problem is not of general interest and other
big changes will happen soon (maybe the 2.3 merge)
where the problem might go away, it is ok that you
simply say "wait for that to happen" to me.
Regards
Ulrich
--- Paul Bame <bame@fc.hp.com> wrote:
> = Hi all,
> =
> = I have build a new kernel with the CVS version
> = 19991205 and I get the following console output
> when I
> = try to boot it on my 715/33:
>
> If you'll place that kernel somewhere I can get it,
> I'll check
> this, or you can. Look into the kernel and/or
> System.map
> for what's at 0xc004a078, which is inside a
> procedure which will
> return to 0xc0112000. It looks like a null (or
> small) pointer
> dereference because we're trying to create a virtual
> mapping for address 0.
>
> -P
>
> = PARISC/Linux Bootstrap Version 0.6 (interactive)
> = By Helge Deller & Jason Eckhardt
> = Built Mon Dec 6 11:13:34 MET 1999 by root@be5359
> =
> = Reading parameters...done.
> =
> = Loading PA-RISC/Linux Kernel...
> =
> = Please enter the command-line:
> = /stand/vmlinux HOME=/ TERM=LINUX console=tty
> =
> = SOM-Kernel:
> = aux_header_location: 00000080
> = som : 00200080
> = exec_dfile: 000CE000
> = exec_dsize: 00081000
> = exec_dmem : C00A0000
> = exec_tfile: 0003E000
> = exec_tsize: 0008F008
> = exec_tmem : C0010000
> = Code at 0x00010000, size=0x0008F008
> = Data at 0x000A0000, size=0x00081000
> = BSS at 0x00121000.
> =
> = Transferring control to kernel. (At entry point
> = 0x00010000)
> = kernel(0x146880, 0x504010, 0x146880, 0x12c30)
> = Boot loader: PA/Linux, maybe PALO
> = kernel free mem 0x00146880
> = realmode_setup exiting
> = Can't insert TLB miss handler pa 0x40000000 va
> = 0x00000000
> = r0-3 0x0004fb0b 0xc0112000 0xc004a170
>
> = 0x00000000
> = r4-7 0xc0112000 0x00000000 0x00000400
>
> = 0x00000000
> = r8-11 0xc01db000 0x00000000 0x00000400
>
> = 0x00000100
> = r12-15 0xc01a4988 0x00000000 0x00000000
>
> = 0x00000000
> = r16-19 0x00000000 0x00000400 0x00001000
>
> = 0x0000001f
> = r20-23 0x00000020 0xc01a001c 0x00000001
>
> = 0xc01268b0
> = r24-27 0x00000000 0x00000400 0x00000000
>
> = 0xc009f000
> = r28-31 0xc01db000 0x0000000b 0xc01a4f40
>
> = 0xc007a39c
> = sr0-3 0x00000000 0x00000000 0x00000000
>
> = 0x00000000
> = sr4-7 0x00000000 0x00000000 0x00000000
>
> = 0x00000000
> = iasq 0x00000020 0x00000003
> = iaoq 0xc004a078 0xc004a07c
> = cr30 0x00000000 ksp 0x00000001 kpc 0xc01a4f80 sar
> = 0x00000012
> = iir 0x48730038
> =
> = The last successful booting kernel was from the
> CVS
> = version 19991123.
> =
> = Any ideas ?
> = Ulrich
> =
> = --- Paul Bame <bame@debian.fc.hp.com> wrote:
> = >
> = > I just committed the changes to embed real-mode
> code
> = > in a separate
> = > executable inside vmlinux. It should cause no
> = > functional changes
> = > in theory. Read all about it in
> = > arch/parisc/real/README and
> = > ee.html. If you have terrible new problems,
> = > I've attached a list of CVS commands to check
> out
> = > the files before I
> = > started hacking on them. I haven't seen a shell
> = > prompt from this
> = > set of hacks so beware...
> = >
> = > -Paul Bame
> = >
> = > prumpf- I moved kernel_thread and friends from
> = > real/<something> to kernel/head.S I also
> = > re-enabled BTLB in
> = > real/setup.c so I could get further in the
> boot.
> = > Left some
> = > debugging printks in the handle_real_interrupt
> = > handler too.
> = >
> = > cvs update -r1.25 arch/parisc/Makefile
> = > cvs update -A arch/parisc/Makefile
> = > cvs update -r1.28 arch/parisc/kernel/Makefile
> = > cvs update -A arch/parisc/kernel/Makefile
> = > cvs update -r1.35 arch/parisc/kernel/head.S
> = > cvs update -A arch/parisc/kernel/head.S
> = > cvs update -r1.39 arch/parisc/kernel/irq.c
> = > cvs update -A arch/parisc/kernel/irq.c
> = > cvs update -r1.14 arch/parisc/kernel/pdc.c
> = > cvs update -A arch/parisc/kernel/pdc.c
> = > cvs update -r1.25 arch/parisc/kernel/pdc_cons.c
> = > cvs update -A arch/parisc/kernel/pdc_cons.c
> = > cvs update -r1.73 arch/parisc/kernel/setup.c
> = > cvs update -A arch/parisc/kernel/setup.c
> = > cvs update -r1.11 arch/parisc/kernel/traps.c
> = > cvs update -A arch/parisc/kernel/traps.c
> = > cvs update -r1.2 arch/parisc/real/Makefile
> = > cvs update -A arch/parisc/real/Makefile
> = > cvs update -r1.2 arch/parisc/real/head.S
> = > cvs update -A arch/parisc/real/head.S
> = > cvs update -r1.2 arch/parisc/real/interruption.S
> = > cvs update -A arch/parisc/real/interruption.S
> = > cvs update -r1.2 arch/parisc/real/lib.c
> = > cvs update -A arch/parisc/real/lib.c
> = > cvs update -r1.2 arch/parisc/real/pdc.c
> = > cvs update -A arch/parisc/real/pdc.c
> = > cvs update -r1.2 arch/parisc/real/real.h
> = > cvs update -A arch/parisc/real/real.h
> = > cvs update -r1.2 arch/parisc/real/real_s.S
> = > cvs update -A arch/parisc/real/real_s.S
> = > cvs update -r1.2 arch/parisc/real/setup.c
> = > cvs update -A arch/parisc/real/setup.c
> = > cvs update -r1.1 arch/parisc/real/traps.c
> = > cvs update -A arch/parisc/real/traps.c
> = > cvs update -r1.1 include/asm-parisc/real.h
> = > cvs update -A include/asm-parisc/real.h
> = >
> = >
> =
>
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> = >
> = >
> =
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